Chen Sean Chihhsiang
President and COO
Chen Sean Chihhsiang has filed 4 SEC Form 4 filings (6 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: May 18, 2026.
On the most recent filing, Chen Sean Chihhsiang is listed as President and COO at Ambiq Micro, Inc. Inside the rolling window, Chen Sean Chihhsiang reported no open-market purchases and 1 open-market sale totaling $3.9M in AMBQ.
Companies traded
Other insiders at AMBQ
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$3.9M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Chen Sean Chihhsiang made?
Chen Sean Chihhsiang has filed 4 SEC Form 4 filings (6 transaction rows) across 1 company since 2025.
Which companies does Chen Sean Chihhsiang trade?
Chen Sean Chihhsiang has filed SEC Form 4 disclosures for 1 company, including AMBQ.
When was Chen Sean Chihhsiang's most recent SEC Form 4 filing?
Chen Sean Chihhsiang's most recent SEC Form 4 filing on Tracefour is dated May 18, 2026.
What is Chen Sean Chihhsiang's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Chen Sean Chihhsiang is listed as President and COO.
What is Chen Sean Chihhsiang's total buy and sell value in the current window?
Inside the rolling retention window, Chen Sean Chihhsiang bought $0 and sold $3.9M based on SEC Form 4 filings.
What was Chen Sean Chihhsiang's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 55,685 AMBQ shares on 2026-05-15, worth $3.9M, per SEC Form 4 filings.